BetaBetaDataset
To provide a geographic representation of settlements in Ghana, in two forms: (1) settlement polygons, and (2) spatial points depicting the centroids of settled grid cells at 3-arc seconds (or ~100 meters) contained within settlement polygons.
The current version supersedes GRID3 Ghana Settlement Extents, Version 02; the following changes were made: (1) Development of a new methodology to derive building counts and settlement polygons with open data. (2) Estimation of a probability value for settlement polygons (3) Addition of a building-area measure (4) Replacement of degree of urbanization with classification based on built-up areas, small settlement areas, and hamlets (5) Elimination of building-count ranges (6) Elimination of variable comparing to previous versions
interactive maps depicting settlement population in Ghana
Data provided by the Center for International Earth Science Information Network (CIESIN), Columbia University